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*Estimated payments are calculated by Cars.com and are for informational purposes only. We’ve estimated your taxes based on your provided ZIP code. These estimates do not include title, registration fees, lien fees, or any other fees that may be imposed by a governmental agency in connection with the sale and financing of the vehicle. Other taxes may apply. They do not represent a financing offer or a guarantee of credit from the seller. Actual terms vary by lender.
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Used
2021 GMC Terrain
for sale
near
Montclair, NJ
- Down Payment
- $0
- Net trade-in value
- $0
- Months
- 72
- APR
- 7.0%
- Sales tax
- 0.0%
*Estimated payments are calculated by Cars.com and are for informational purposes only. We’ve estimated your taxes based on your provided ZIP code. These estimates do not include title, registration fees, lien fees, or any other fees that may be imposed by a governmental agency in connection with the sale and financing of the vehicle. Other taxes may apply. They do not represent a financing offer or a guarantee of credit from the seller. Actual terms vary by lender.
**Your Saved Vehicles list will be shared along with your contact information when you submit a vehicle request to a dealership. To opt out of this sharing, please view your options on Cars.com Privacy Notice.
Used
2021 GMC Terrain SLT
Vehicle information
Features
Reviews
Alfredo is a very nice sales person .
Alfredo is a very nice sales person .. NO hard sell.. patient.. listened to my concerns... although we may not make a deal bc. of thte distance.. Have only nice things to say about the dealership.. JIMO
READ PLEASE I love my Terrain.
READ PLEASE I love my Terrain. DO NOT get the 1.5 L. My engine has barely made it over 100,000 I have had $6k of repairs in less than a year. Things keep going wrong now. I had NO issues before. Catalytic converter went out 75-85k miles. My turbo was just replaced. Just beware of this type of engine… every mechanic that worked on it shared this is not uncommon for this type. I would definitely get another terrain but not the 1.5!
Vehicle information
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Reviews
5 Stars!
5 Stars! I recently purchased my Mercedes from NJ Auto Sales and couldn’t be happier with the experience. The car has been absolutely great, and the team there made the entire process smooth and stress-free. Everyone was super friendly, professional, and knowledgeable — they answered all my questions and made sure I was comfortable with everything. They also helped me secure a great interest rate with a solid bank, which made the deal even better. I’ve already recommended them to my family and friends, and I’ll definitely be back for my next vehicle. Highly recommend checking them out if you’re in the market for a car!
Our 2021 Terrain SLT is really a nice auto.
Our 2021 Terrain SLT is really a nice auto. Gets great 30 MPG approximately, But, 0 to 60 is lacking horsepower. Great Little highway auto. Comfortable.....
Used
2021 GMC Terrain SLT
Vehicle information
Features
Reviews
I recently purchased a vehicle and worked with Serenity.
I recently purchased a vehicle and worked with Serenity. She was an outstanding salesperson. Professional and courteous!
One of the best looking suv's on the road. Highly
Extremely happy. Ride comfort, controls, comfort, looks, quietness, Quality. They should've kept the 2.0 turbo. But this engine not bad at all. Can't wait to get another.
Vehicle information
Features
Reviews
Our experience at Liberty Subaru was, from start to
Our experience at Liberty Subaru was, from start to finish, quite fine. Our sales consultant, John Clarke was excellent, indeed. He provided thorough explanations of the various features of our new Forester. Thorough, clear and patient--never rushed or pushy. He didn't just explain the car's features; he took us to the car itself and demonstrated some of these features. For example, the connection to the navigation system. This was reassuring, given all the new technology in the 2025 Forester. It is clear that he is very knowledgeable about the car and because of that knowledge, seems to genuinely like it. A lot! He has an even and warm personality. It was such a pleasure to have him introduce us to our new car!
Amazing SUV
I’ve had an amazing experience with terrain Denali. I had it for 3 years and it was one of the best cars ever. Everything worked perfectly no issued at all! Loved it
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Reviews
If you are looking for an affordabl, reliable, and
If you are looking for an affordabl, reliable, and confident comfortable shopping experience. Please go to auto spot llc and make sure you ask for Abdul. He knows his stuff with no pressure to you. He works wonders and was able to get me within my window to spend for my car.
Grea4 mileage and comfort
Bought it used. The shifter on the dash takes getting used to. But after a month I no longer grab for the shifter arm. Have been happy with comfort. Driving. Gas mileage. Would recommend it.
Used
2021 GMC Terrain SLT
Vehicle information
Features
Reviews
Very nice staff.
Very nice staff. Very helpful and professional. Honest and willing to go the extra mile.
Used
2021 GMC Terrain SLT
Vehicle information
Features
Reviews
FEELING HAPPY
I'M HAPPY WITH THIS DEALER SHIP THEY GO OUT OF THERE WAY TO MAKE YOU THEIR PRIORITY . THE OWNER LEITON WILL FIGHT FOR YOU UNTIL YOU ARE SATISFIED. I BOUGHT A TRUCK THIS WEEK THIS IS MY FIFTH CAR WITH THIS COMPANY THANK YOU
Used
2021 GMC Terrain SLE
Vehicle information
Features
Reviews
I arrived at the lot almost at closing time.
I arrived at the lot almost at closing time. The staff approached me immediately with a warm, welcoming smile. They patiently showed me every vehicle I wanted to see, maintaining a high level of professionalism that stood out compared to the other dealerships I'd visited earlier. Their positive demeanor at the end of the day convinced me to make my purchase here. I highly recommend them and will gladly refer family and friends.
Vehicle information
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Reviews
I recently purchased a 2023 BMW X5 from Island Auto
I recently purchased a 2023 BMW X5 from Island Auto Group, and the experience was outstanding from start to finish. I’ve bought and leased several vehicles over the years, and this was easily one of the smoothest, most transparent car-buying processes I’ve had. From the moment I arrived, the team was professional, knowledgeable, and respectful of my time. There was no pressure, no games, and no hidden fees, which is something I really appreciated. They walked me through the details of the BMW X5, answered all my questions clearly, and made sure I understood every option before moving forward. The pricing was fair and competitive, and they were upfront about everything — trade-in value, financing, and next steps. The vehicle itself was in excellent condition, exactly as advertised, and the delivery process was seamless. What really stood out was the customer-first approach. It felt like they genuinely wanted to earn my business, not just close a deal. The entire process was efficient, professional, and stress-free. If you’re looking to buy a pre-owned luxury vehicle like a BMW X5, or honestly any car, I highly recommend Island Auto Group. They made what can be a complicated process feel easy and straightforward. I would absolutely buy from them again.
Used
2021 GMC Terrain SLT
Vehicle information
Features
Reviews
I recently had the pleasure of trading in and purchasing
I recently had the pleasure of trading in and purchasing my 2nd vehicle in 3 years from George Gregory at Sawyer Lyons GMC. Every time I visit this dealership (for service or sales), I feel welcomed and valued. George, who has always been both friendly and professional, always takes the time to say hello and that leaves a lasting impression on customers During the sales process, he has never pressured me into making a decision but instead encouraged me to take my time and ask questions. What really stood out, though, was his commitment to ensuring I got the best deal possible. He worked with the finance team to offer competitive pricing and tailored options that fit my budget. Throughout the negotiation, he was transparent, honest, and made sure I was comfortable with every step. Because of my experience with George, I feel confident in my purchase, not just because of the great car I was driving off with, but because of the exceptional service I received. It's rare to find a car salesman who genuinely prioritizes customer satisfaction over making a sale, but this one certainly did. If you're in the market for a new vehicle, I highly recommend working with him—his professionalism and customer-first attitude made all the difference.
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GMC Terrain prices by year
| Model year | Average price | Deals |
|---|---|---|
| 2026 GMC Terrain | $38,725 | 2 Good deals |
| 2024 GMC Terrain | $27,097 | 13 Good deals |
| 2023 GMC Terrain | $22,328 | 7 Great deals |
| 2022 GMC Terrain | $22,139 | 15 Great deals |
| 2020 GMC Terrain | $17,922 | 5 Good deals |
| 2019 GMC Terrain | $14,603 | 5 Great deals |
| 2018 GMC Terrain | $11,846 | 7 Good deals |
About the 2021 GMC Terrain
SL shown (base trim).
- Seating
- 5
- Door count
- 4
- Drivetrain
- Front-wheel drive
- Combined MPG
- 27
- Transmission
- 9-Speed A/T
- Engine
- 170.0-hp, 1.5-liter, 4 Cylinder Engine (Gasoline Fuel)
How much does the 2021 GMC Terrain cost?
The 2021 GMC Terrain price depends on several factors, including the trim level, optional features, mileage, vehicle history and location. The nationwide average price for a 2021 Terrain is $18,657, with pricing starting at $9,999.
What is the MPG of the 2021 GMC Terrain?
The 2021 GMC Terrain offers up to 25 MPG in city driving and 30 MPG on the highway for a combined rating of 27 MPG.
These figures are based on EPA mileage ratings and are for comparison purposes only. The actual mileage will vary depending on the selected vehicle trim, driving conditions, driving habits, vehicle maintenance, and other factors.
What are some similar vehicles and competitors of the 2021 GMC Terrain?
The 2021 GMC Terrain compares to and/or competes against the following vehicles:
Is the 2021 GMC Terrain reliable?
The 2021 GMC Terrain has an average reliability rating of 4.7 out of 5 according to Cars.com consumers. Find real-world reliability insights within consumer reviews from 2021 Terrain owners.
Is the 2021 GMC Terrain a good SUV?
Below are the Cars.com consumer ratings for the 2021 GMC Terrain.
- Comfort 4.7
- Interior 4.7
- Performance 4.4
- Value 4.4
- Exterior 4.8
- Reliability 4.7
88% of drivers recommend this car
- Comfort 4.7
- Interior 4.7
- Performance 4.4
- Value 4.4
- Exterior 4.8
- Reliability 4.7
Denali (2 styles)
| Style | |
|---|---|
| FWD 4dr Denali | AWD 4dr Denali |
| Inventory price | |
| Starting at $35,900 | Starting at $37,500 |
| Combined MPG | |
| 27 | 26 |
| Engine | |
| 170.0-hp, 1.5-liter, 4 Cylinder Engine (Gasoline Fuel) | 170.0-hp, 1.5-liter, 4 Cylinder Engine (Gasoline Fuel) |
SL (1 style)
| Style |
|---|
| FWD 4dr SL |
| Inventory price |
| Starting at $25,000 |
| Combined MPG |
| 27 |
| Engine |
| 170.0-hp, 1.5-liter, 4 Cylinder Engine (Gasoline Fuel) |
SLE (2 styles)
| Style | |
|---|---|
| FWD 4dr SLE | AWD 4dr SLE |
| Inventory price | |
| Starting at $28,500 | Starting at $30,100 |
| Combined MPG | |
| 27 | 26 |
| Engine | |
| 170.0-hp, 1.5-liter, 4 Cylinder Engine (Gasoline Fuel) | 170.0-hp, 1.5-liter, 4 Cylinder Engine (Gasoline Fuel) |
SLT (2 styles)
| Style | |
|---|---|
| AWD 4dr SLT | FWD 4dr SLT |
| Inventory price | |
| Starting at $34,200 | Starting at $32,600 |
| Combined MPG | |
| 26 | 27 |
| Engine | |
| 170.0-hp, 1.5-liter, 4 Cylinder Engine (Gasoline Fuel) | 170.0-hp, 1.5-liter, 4 Cylinder Engine (Gasoline Fuel) |
*Estimated payments are calculated by Cars.com and are for informational purposes only. We’ve estimated your taxes based on your provided ZIP code. These estimates do not include title, registration fees, lien fees, or any other fees that may be imposed by a governmental agency in connection with the sale and financing of the vehicle. Other taxes may apply. They do not represent a financing offer or a guarantee of credit from the seller. Actual terms vary by lender.
**Your Saved Vehicles list will be shared along with your contact information when you submit a vehicle request to a dealership. To opt out of this sharing, please view your options on Cars.com Privacy Notice.
Research the 2021 GMC Terrain
Compare the 2021 GMC Terrain
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This vehicle is certified pre-owned, backed by a manufacturer warranty, and typically undergoes a rigorous multi-point inspection to ensure quality and reliability.
This vehicle is currently in high demand given its competitive price, desirable features, and overall condition, and may have a higher chance of selling quickly.
